Electric cut-out.



T. E. MURRAY, JR, ELEGTRG CUT-OUT.

APPMGATION FILED IEBA 1913.

Patented. June 17, 191.3

' New York .and

Aof the block.

tion, fend =hy reason THOMAS E. MURRAY, JR..UOENEW YORK,

N. Y., ASSIGNOKRSTO THGMAS EMURRAY, .DE

NEW YORK. N. Y.

ELECTRIC GUT-our.

fBe iit"l nown that il, THOMAS E. RAY, Jr., residing at New York, in thevcounty of State of New York, have invented-'a certain. new end useful:Improvement -in 'Electric 'Gut-Outs, of which the following is faspecification.

The invention is -an electric cut-out, designed .for use in connectionwith fuse carriers .having exposed fuse strips von -their oppositesides, -`which coperate with Vcontacts on ythe base. l.The constructionis such thaton-e'or Imore-carriers may be mounted detachebly on a`pivoted support, whereby they may hefnoved into and out of cooperation ywith vsaid I4contamts. The support niej be -'operated from the exterioryof a sealedcasing inclosing the parts.

LInfthe'faecornpanying drawings Figure l. is fa. longitudinal section ofmy cut-out on Munwith 'the cover removed, the casing being inIhorizontal section on the line y, y of Fig. 1. Figfshows a-'use carrierin perspeetive.

'Similar nuirnbers' of reference indicate'like parts.l

The fuse carrier l comprises 'a block 2 of insulating material, fin'which is `set a thin plate-3 of 'lilrernaterih The middle contractedrportion of the fuse strip 4 Vis disposed fin-n .recess 'in the upperedge-oi' said plate. =`Saitl strip is doubled over the edge of the'plate soithat-its arms are in Contact iwith opposite sides ot saidplate andfsaid block. Theends of the strip are securedin any suitableVvway to the bottom When the "fuse, is 'lilo\v.n, rupture "taires fplaceat the Acontracted porof lthe 'fact that ythe current niovesfinoppositedirections in `the ar-msofthe strip on-opposi-te sides otplate 8,repulsionf'takcs placebetween f the fields surrounding'said arms,whereby said arnis are forced asunder,'sotliat wideseparation of theends of theblownfuse is thus assured. A fuse constructed on thisprinciple is disclosed in my copending application, Serial No,(S9-2,258, filed vApril-22, 1912,

and is not herein claimed. "My present de-Y,

Vice is designed to permit of convenient ya lcitizen of,the UnitedStates,

'Specification of Letters Patent. 'Igintei'l Ji n "Z, 191 3,nplplcat'on'filed February 4, 11913. Serial o. 746,997.

insertion and removal (if-suche. inse carrier in one or more circuits. 1

The base v5 is preferably' of retractorjY f'three longitudinal recesses.in each recess is a plete 6 'turned upwardly at its inner 4end to form a'vertical Contact '7. At the vopposite end of the-recess is a similarpleite 8 turned upwardly at its inner end to form a vertical contact Theplates are v'separated, and the contacts 7 and Qstand opposite oneanother to'receive between ythem the fuse carrier l, which is placedsothat vthe `arms ofthe fuse strip on thciopposite sides of block 2respectively meet said con- "t-acts.V Une circuit terminal, as'lOyisconnected to plate G, and corresponding circuit thus being` closedVthrough the fuse strip?.

Journaled Ain lugs l2 on the outer 'walls "of base 5 is a shaft 13.Between saidlugs said shaft is polygonal in cross section, and =carriesthree arins li. To the upper `side of said arms is secured 'a cross bar215 ot insulating'rneterinh having lateral lproiec-v fbetween the baseblock recesses. Extending also from each of said arms and parsllel toprojections lil is a split rod 1T, which enters an opening 1S in theyfuse carrier l, =and is compressed in said opening, so that the carrierwhen placed on said "rofl is ltightly held thereon. The shaft 13 extends`through a wallof a metal casing 19 which Icovcrs thedevice. Saidcasing-may be sefcui'ed to a wall or other support by internal lugs 20.Outside of said casino, shaft-13 lcarries a handle 2.1, by which 'it maybe rocked. The casing is provided .with a yhinged cover 22 secured by a.suitable seal. Jfastening 23. Three circuit leads are here shownprovided with 'the usual threaded sheaths which -are secured in the endVwells of the casing by suitable nut-s.

in operation, the cover 22 is removed, and the several fuse carriers areplaced upon 'the several rods 17. The handle 2.1 is turned 'vertically,bringing said. carriers between the several pairs of contacts 7, 3, andhence theuse strips into circuit. The cover is closed, and thesealfastening applied. The iiuse carriers can be lifted outwof theirconinsulating material, and is here shown with Iterminal v11 isconnected to plate 8, circuit tions 16 which extend over the partitions.

Cri

4separated contacts thereon, a tuse carrier .taets tacts by moving thehandle in suitable direction, and replacedby restoring the handle to itsoriginal position. This can be done Without disturbing the cover. Theprojections 16 prevent possible Contact of adjacent fuse strips after'the arms have been thrown asunder in the manner previously explained.

I claim:

l.. An electric cutout, comprising abuse, separated contacts thereon, atwoariued fuse strip, a carrier interposed betwei-rn the arms of'saidstrip and a support for said carrier pivoted on said base for movingsaid fuse arms into and out oit coflperation with said contacts. i

Q. An, electric' cut-out, comprising a base, Separated contacts thereon,a two-armed fuse strip, a carrier interposed between the arnis of saidstrip, a support for said carrier piv- -oted on said base for movingsaid fuse arnis into and outof cooperation with said contacts, and meansfor detachahly connecting' said carrier to saidsupport.

An electric cut-out, comprising a base, separated contacts thereon, a'fuse carrier provided with an opening and having an exposed fuse stripupon its opposite sides coperating with said contacts, a sumiort forsaid carrier pivoted on said base for movin r'said carrier into and outof cooperation with said contacts, and an arni on said support extendingbetween said. contaetsand received :in said opening;I in said carrier.

4. An electric cut-out, comprising a base, separated contacts thereon, atwo-armed fuse strip, a carrier interposed between the arms of saidstrip, a support for Said carrier pivoted on said base for moving saidfuse arms into and out et' cooperation with said contacts, a casing`wholly inc-losingA said parts, and means external to said casing` foroperating said support without openingl said easing.

5; An electric eut-out., comprisingI a base,

i l l provided with an opening and havin w an tirets, land a bellerankiever-pivoted on said base and having one arm enteringl saidopening- 5` in said fuse carrier, to uioveltle saine into and out ofcooperation with said eon- (3. An electric cutout, comprising' a base, vseparated contacts' thereon, a. :fuse carrier ha ving au exposed fusestrip on its opposite sides cooperating' with said conta cts, the saidstrip being doubled upon itself with its arms parallel andv in mutuallyrepulsive proximity 'whereby upon the rupture ot sai r`l strip,

said arms shall be mutually 'forced asunder, and walls ot insulating`material on said base in proximity to and facing said arms.

7. An electric cut-out, comprising,` abase, separated contacts thereon,a fuse carrier having au exposed. fuse .strip on its opposite sidescooperating with said conta-cts, the said strip being doubled uponitself with its arms parallel and in mutually repulsive proximitywhereby upon the rupture ofisaid strip, said arms shall be mutuallyforced asunder, walls ot insulating material on said base in proximityto and facing said arms, and a support for said walls and carrierpivoted to said base and movable to convey .said carrier into and outot' cooperation with said contacts.

8. Au electric cut-out, comprising a base, two' pairs of separatedcontacts thereon, two fuse carriers, each having an exposed fuso stripon its opposite sides cooperating with a pair ot said contacts, the saidstrip being doubled upon itself with its arius parallel and iniuutuallyrepulsive proximity where by upon the rupture oi2 said strip, said arnisshall be mutually `torced asunder, and a carriers.

S). An electric cutout, comprising a base, two pairs of separatedcontacts thereon, two fuse carriers, each having an exposed fuso striponits opposite sides cooperating with a pair of said contacts, the saidystrip being doubled upon itself with its arms parallel and in mutuallyrepulsive proximity whereby upon the rupture o 't said strip, said. armsshall be mutually asiuider, a screen of insulating niet yrial betweensaid carriers, and a support for said sc. und carriers pivoted to saidbase and movable 'to convey said carriers into and out oli cooperationwith said contacts.

l0.. in `electric output, "ouignising having plurality ot' longitiuliualie a pair of separated contacts in each recess, Juse carriers, eachliar/iu 'in exposed fuse strip upon .its opposite the said tuse stripsvcoiioperatii facts, a roel.; sh ariu's on said shai't engaoii .i

to move the saine n' .i ot' cooperation with said couacts, u, cross baron said. arms, and projmfng plates of insu base,

dating material ou said bar disposed opposite the intervals between saidarms.

'lu testin'ioujvy fheroot' l have aiixed my `sigi-iature iu i i senceoi" two "witnesses,

` r t lifts E. liillR-RAY, du.

cesses,

screen oi' insulating` material between said liti

